DETROIT (Billboard) - As far as Paul McCartney is concerned, words like "take it easy" are reserved for the Eagles.

During the past three years alone the ex-Beatle has released a pair of pop albums -- the Grammy-nominated "Chaos and Creation in the Backyard" in 2005 and this year's "Memory Almost Full" -- as well as the 2006 classical piece "Ecce Cor Meum." Sir Paul also collaborated on albums by Tony Bennett, George Benson and Al Jarreau, and George Michael.

This fall McCartney released an expanded edition of "Memory Almost Full," adding three bonus tracks and a second disc of videos and live footage, along with a three-DVD retrospective of his solo career, "The McCartney Years," that's loaded with rare and unreleased material. And he had a piece in the DVD rollout of the Beatles' "Help."

There are musicians a third his age (65) who aren't working at nearly the same level, and we can rest assured that the days of "doing the garden, digging the weeds" are still a long way off for this knighted former mop top.

Q: What accounts for the creative spurt you seem to be on the past few years?

Paul McCartney: "It's simple: I really enjoy what I do. And every so often I just get sort of inspired. I never know why or how, but I think one of the great things is that music is a great healer and it's a great sort of therapy. Often if you're going through something difficult -- as you can imagine without me laying too much of a point on it, this last year's been pretty difficult -- to get into your music is a great thing. So I think the last couple years I've been very glad to have my music and I've been putting stuff into it that seems to have added up to something."

Q: Do you feel like you're getting inspiration as well as healing from these hard times?

McCartney: "I think that's true. You look at the lives of the great composers and they were not a lot of fun, some of them. Great painters, too; I was looking at a fantastic painting by Rembrandt the other day in a museum, and I was reminded by the blurb next to it that he died penniless and had a terribly bloody time, but he was one hell of a painter. So that's why I say therapy; you're feeling bad, you skulk off to a corner with your guitar and you write something, and somehow you seem to take yourself through it and you work through it with your music. I thank heaven for that. I feel very, very blessed. People always used to call it a gift, the gift of music, and I think that's very much, more and more, how I see it."

Q: That being said, "Memory Almost Full" isn't exactly "Blood on the Tracks," is it?

McCartney: "That's funny, isn't it? I still seem to come out positive and optimistic. I think that's my character. But (the divorce from Heather Mills) is something I don't want to talk about, and really for one reason. I have a baby daughter ... a 4-year-old, and I do not want to excite the envelope in any direction whatsoever. I'm just sort of keeping the dignified silence."

Q: So, how did "The McCartney Years" come about?

McCartney: "For a long time people have been saying to me, 'When can we get a hold of that video?' or 'Is that video available? Is that released?' And I just sort of thought, 'No ...' I was always a little bit like, 'One day, yeah, I'll do it. Don't worry.' But then a couple of guys got in touch with me and said, 'Look, we think it's time. We want to work on it. Let us put forward a proposal of what we would do for you to look at.'

"It took a long time to put together. They started cleaning it all up, and then they cleaned the sound mixes up and then they started showing me, and that was like, 'Jeez, I've never heard it like this. I've never seen it like this.' So I started to get excited and I fell for the whole idea. I just said, 'Go to it boys, let's do it.'"

Q: What did you encounter in doing the project that really blew you away?

McCartney: "I think the short answer is, 'everything.' Obviously, everything with Linda in it was particularly heart-warming, realizing her major contribution to everything once you see it all en masse. I hadn't seen 'Tug of War' in a while, which was lovely. It was good to see things like 'Say Say Say' with Michael Jackson, and of course Linda and our daughter Heather make an appearance in that, so that was really cool."

Q: You used Ringo (Starr) pretty liberally as a guest star in your videos.

McCartney: "Yeah, that was very good. 'Take It Away' and 'Beautiful Night,' he kindly agreed to be the drummer in those, especially as he'd (played on) 'Take It Away.' It was just fabulous. (Beatles producer) George Martin even appears in one of them."

Q: You must have had an interesting perspective on videos in the '80s and beyond because it was no stranger to you. You did videos -- you even did movies -- with the Beatles, so it wasn't quite as revolutionary of a concept as it was in the

U.S.

McCartney: "The difference was you suddenly had to be a short filmmaker as well, and not all of us liked it. The process was quite wearing. You'd sort of farm it out to three or four directors who you thought were hot and (one) would come back with -- it was a bit like a comedy sketch -- 'I see you on a mountaintop in Tibet wearing nothing but a loincloth. The Sun God shines down ...' and you're going 'Oh no.' Then the next one was, 'I see you in a scene from the Keystone Cops. You're hanging off the back of a wagon, it's all shot in fast-motion black-and-white.' Or it was, 'I see you as a scene from "Casablanca" ... I see you as the Terminator.' You're just desperate to get something where you can go, 'This looks alright.' Occasionally there would be a good idea ... and the rest of the time there was an element of embarrassment 'cause you thought of yourself as a singer, not a film star."

Q: Was it different when you were doing it in the '60s?

McCartney: "Yeah, it wasn't quite so important, so we would say, 'Oh, look, just get a camera and we'll get girls with grass skirts and we'll just stand there in our Sgt. Pepper's costumes and sing "Hello Goodbye."' There wasn't that much thought that went into it, which made it a little bit more innocent and less precious."

Q: Of the live material on "The McCartney Years," it's kind of brave to include your Live Aid performance in the set.

McCartney: "Oh my God, the Live Aid was just one of those things I'd sooner forget. I came in from the country and sort of drove in and every window in Britain was open with televisions on and Live Aid blaring out. It was a national event and I knew I was gonna be on it, but I didn't take anyone with me. I didn't have a roadie. I didn't even have anyone to make sure my mic or speakers were working. And Bob Geldof just said, 'Well, your piano's behind that curtain. You're on.' There I was in front of the world ... and I heard in my monitor very ominous sounds of roadies talking: 'Is this the plug?' I figured, 'I'll just keep plugging on,' but I couldn't hear myself. I couldn't hear anything. And then it suddenly became clear my mic wasn't on, but the dear old audience helped me out, God bless 'em. They all sang it. So I escaped by the skin of my teeth. It was sort of a nightmare. If you asked me for three nervous moments, I think that'd be top."

Q: Is there any news about the Beatles' catalogue going online?

McCartney: "I think it's all happening soon. There are contractual things, and you'll find that someone in the loop maybe doesn't want to give what they should give, so it's negotiating. But I think we're kinda set. I think that Apple is set to do their bit. The whole thing is primed, ready to go. There's just maybe sort of one little sticking point left, and I think that's being cleared up as we speak, so it shouldn't be too long. But, you know, you've got to get these things right. ... So it's down to the fine-tuning, but I'm pretty sure it'll be happening next year, 2008."

Q: What's next for you, musically?

McCartney: "I'm actually doing some recording with my son (James). We're just looking at the idea of him making an album. He's doing it all. He's writing it all ... It's sensational. But there's nothing set yet. ... The plan is for me to just do some recording with him, and it's really exciting. I'm really loving it."